FRANKFURT/BERLIN (Reuters) – German airline Lufthansa (LHAG.DE) canceled 1,450 flights after a pilots union called for a strike on Monday and Tuesday, adding to travelers’ misery after millions were left stranded by a weekend-long train drivers’ stoppage. Lufthansa said late on Sunday more than 200,000 passengers and two thirds of its scheduled flights – short and mid-length services, mostly within Europe – would be affected by the strike. Both the pilots’ and train drivers’ strikes hit at the start of a week-long, half-term holidays in nearly half of Germany’s 16 federal states.